Birdie bread is a good alternative, especially if you put veggies in there. Even so, I'd recommend trying other brands of pellets, sometimes they just don't like some brands. My boys eat Harrison's adult lifetime. Avoid anything with colors or artificial ingredients and sweeteners.
My boys will happily eat ANYTHING if they see me eating it, so this is a trick you can try with Baby. Eat (or pretend to eat) a pellet or two and you may find Baby will want to try it also.
Another option is Nutriberries. Yoda and Trigger LOVE them, I hide them in foraging toys for them, treating them as treats because pellets are better for them.
1. Human food that has sugar, salt, or fats are not good for your bird. Sharing these will also encourage bad behavior (like begging and stealing your food). Human food like fresh fruits and veggies are a great thing to share with your bird... just so long as you didn't put salt/butter/cheese/chocolate/whatever on it of course.

Be familiar with the list of Toxic foods to avoid though.
2. Not really safe. They can eat too much and become impacted. Also, if it's been hanging in a bathroom it's picked up lots of icky stuff from the air everytime someone flushes or paws at the toilet paper while using the facilities. Same is true for the cardboard rolls. Paper towel rolls are typically harmless but there's no guarantee that the glues used will be 100% safe.
3. Sure, just don't let them get too obsessed with them. Also be careful that they don't try to fly into them.
4. Plastic toys are typically safe. If you would feel safe with letting a human baby play with it, then it it should be safe for your bird. So plastic wrap, sharp plastics, plastic bags, dirty plastic, plastic that has chemicals on it are all bad of course.
http://www.parrotforums.com/parrot-...afe-fresh-foods-toxic-food-lists-sprouts.html